I bought it for replacing the ball of an old bicycle BB retainer.
Originally, I used it for a frame with poor BB thread cutting accuracy, so I do not know whether the ball hit the ball evenly but it does not seem to be a problem.
Because the price is cheap, I intend to exchange BB maintenance every time.

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All of the products MonotaRO Singapore offers are subject to Japanese local laws, regulations, and certification standards.
Please make sure that it may or may not meet requirements of your country and/or international organizations,
including but not limited to, UL Certification, China Compulsory Certificate system, and Halal.
MonotaRO Co.,Ltd. Hyogo Public Safety Commission No.631330800020